content: /*
   * Copyright 2017 David Karnok
   *
   * Licensed under the Apache License, Version 2.0 (the "License");
   * you may not use this file except in compliance with the License.
   * You may obtain a copy of the License at
   *
   *     http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  package hu.akarnokd.reactive4javaflow;
  
  import hu.akarnokd.reactive4javaflow.impl.BooleanSubscription;
  import org.junit.Test;
  
  import java.io.IOException;
  
  public class AbstractDisposableSubscriberTest {
  
      @Test
      public void normal() {
          TestConsumer<Integer> ts = new TestConsumer<>();
          ts.onSubscribe(new BooleanSubscription());
          Folyam.range(1, 5)
                  .subscribe(new AbstractDisposableSubscriber<>() {
                      @Override
                      public void onNext(Integer item) {
                          ts.onNext(item);
                      }
  
                      @Override
                      public void onError(Throwable throwable) {
                          ts.onError(throwable);
                      }
  
                      @Override
                      public void onComplete() {
                          ts.onComplete();
                      }
                  });
  
          ts.assertResult(1, 2, 3, 4, 5);
      }
  
      @Test
      public void oneByOne() {
          TestConsumer<Integer> ts = new TestConsumer<>();
          ts.onSubscribe(new BooleanSubscription());
          Folyam.range(1, 5)
                  .subscribe(new AbstractDisposableSubscriber<>() {
                      @Override
                      protected void onStart() {
                          request(1);
                      }
  
                      @Override
                      public void onNext(Integer item) {
                          ts.onNext(item);
                          request(1);
                      }
  
                      @Override
                      public void onError(Throwable throwable) {
                          ts.onError(throwable);
                      }
  
                      @Override
                      public void onComplete() {
                          ts.onComplete();
                      }
                  });
  
          ts.assertResult(1, 2, 3, 4, 5);
      }
  
      @Test
      public void cancelAfter3() {
          TestConsumer<Integer> ts = new TestConsumer<>();
          ts.onSubscribe(new BooleanSubscription());
          Folyam.range(1, 5)
                  .subscribe(new AbstractDisposableSubscriber<>() {
                      @Override
                      public void onNext(Integer item) {
                          ts.onNext(item);
                          if (item == 3) {
                              close();
                              ts.onComplete();
                          }
                      }
  
                      @Override
                      public void onError(Throwable throwable) {
                          ts.onError(throwable);
                      }
  
                      @Override
                      public void onComplete() {
                          ts.onComplete();
                      }
                  });
  
          ts.assertResult(1, 2, 3);
      }
  
      @Test
      public void error() {
          TestConsumer<Integer> ts = new TestConsumer<>();
          ts.onSubscribe(new BooleanSubscription());
          Folyam.<Integer>error(new IOException())
                  .subscribe(new AbstractDisposableSubscriber<>() {
                      @Override
                      public void onNext(Integer item) {
                          ts.onNext(item);
                      }
  
                      @Override
                      public void onError(Throwable throwable) {
                          ts.onError(throwable);
                      }
  
                      @Override
                      public void onComplete() {
                          ts.onComplete();
                      }
                  });
  
          ts.assertFailure(IOException.class);
      }
  
      @Test
      public void negativeRequest() {
          TestHelper.withErrorTracking(errors -> {
              TestConsumer<Integer> ts = new TestConsumer<>();
              ts.onSubscribe(new BooleanSubscription());
              Folyam.range(1, 5)
                      .subscribe(new AbstractDisposableSubscriber<>() {
                          @Override
                          protected void onStart() {
                              request(-1);
                          }
  
                          @Override
                          public void onNext(Integer item) {
                              ts.onNext(item);
                              request(1);
                          }
  
                          @Override
                          public void onError(Throwable throwable) {
                              ts.onError(throwable);
                          }
  
                          @Override
                          public void onComplete() {
                              ts.onComplete();
                          }
                      });
  
              ts.assertEmpty();
  
              TestHelper.assertError(errors, 0, IllegalArgumentException.class);
          });
      }
  }
  